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Sound Waves

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Question

_____ waves consist of compressions and rarefactions

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Solution

Longitudinal waves are those waves where the particles of the material medium vibrate parallel to the direction of wave propagation.
Longitudinal waves travel in the form of compressions and rarefactions.
Compressions are areas of high pressure whereas rarefactions are areas of low pressure.
Hence, longitudinal waves consist of compressions and rarefactions.

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